Well with help from Jeff Favell I finally got it done. I went nuts trying to find pics of what these things look like when finished so I thought I would share the pics with everyone just incase someone else might be able to benifit from them.
Step 1. Line a styrofoam fish box with plastic. Place a heater in the bottom. Mine is stuck to a glass cutting board.
Step 2. Place bricks on either side of the heater.
Step 3. Place a third brick accross the top to act as a bridge.
Step 4. Fill an appropriate size rubbermaid with moist/damp vermiculite and place probe for digital max/min thermometer on the virmiculite.
Step 5. Poke holes in the lid and place on egg box.
Step 6. Put lid on box and gradually bring the temps up.
Cheers,
Trevor